<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

    <div id="app">
        <ul>
            <li v-for="(item, index) in list" :key="item.id">{{ item.name }}</li>
        </ul>
        <button @click="fn()">走一走</button>
    </div>

    <script src="../js/vue.js"></script>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                list: [
                    { id: 1, name: '帅哥' },
                    { id: 2, name: '美女' },
                    { id: 3, name: '程序员' },
                ]
            },
            methods: {
                fn() {
                    this.list.push(this.list.shift())
                }
            }
        })
    </script>

</body>

</html>